Virial clouds explaining the observed rotational asymmetry in the galactic halos

TL;DR

This paper proposes that virialized molecular hydrogen clouds in galactic halos could explain the observed rotational asymmetry in the cosmic microwave background, modeling their physical properties and thermal equilibrium conditions.

Contribution

It introduces a model of virial clouds composed of molecular hydrogen, helium, and dust to explain galactic halo rotation asymmetries observed in the CMB.

Findings

Model constrains physical parameters of hydrogen clouds.

Calculates thermal equilibrium timescales for clouds.

Supports the viability of clouds as an explanation for CMB asymmetry.

Abstract

Rotation of galactic objects has been seen in the cosmic microwave background (CMB) that could be ascribed to molecular hydrogen clouds with, or without, dust contamination and contamination from other sources. We model the clouds using the canonical ensemble for pure molecular hydrogen, a mixture of hydrogen helium and/or dust, in order to constrain the physical parameters of these clouds. Since the clouds are cold, we justify the use of the canonical ensemble by explicitly calculating the interaction between the hydrogen molecules and the CMB photons and determining the time required for thermal equilibrium to be reached and show that there is enough time for equilibrium to be attained.